NCT02931994

Brief Summary

Removal and prevention of formation of dental plaque biofilms is one of the current hygiene regimen to prevent, reduce or even reverse the gingival and periodontal disease condition. In such endeavors of mechanical plaque removal, tooth-brushing and use of dental floss play an important role. Gomes et al have presented a modification in the use of knotted floss in wider embrasure areas. The modification in the dental floss has been done so as to increase the effective width of the floss. The purpose of this study is to compare the reduction of the clinical signs of plaque accumulation, gingival inflammation and gingival trauma in the area the knotted floss technique has been utilized versus the area where conventional flossing has been utilized in Type I gingival embrasures. Patients' acceptability of the knotted flossing technique will also be evaluated. This study is part of a larger study protocol involving different sample groups comparing the knotted floss technique with conventional dental flossing, use of interdental brushes and unitufted brushes in type II and type III embrasures as well.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Apr 2015

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2015

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2016

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2016

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

October 6, 2016

Completed
7 days until next milestone

First Posted

Study publicly available on registry

October 13, 2016

Completed
Last Updated

October 13, 2016

Status Verified

October 1, 2016

Enrollment Period

1.2 years

First QC Date

October 6, 2016

Last Update Submit

October 12, 2016

Conditions

Keywords

dental flossgingival embrasureoral hygiene

Outcome Measures

Primary Outcomes (4)

  • Rustogi modification of Navy Plaque Index - 6weeks

    Rustogi modification of Navy Plaque Index will be assessed at 6-weeks for all subjects in Group A Phase 1, Group B Phase 1, Group A Phase 2, and Group B Phase 2

    6 weeks

  • Lobene's Modified Gingival Index - 6weeks

    Lobene's Modified Gingival Index will be assessed at 6-weeks for all subjects in Group A Phase 1, Group B Phase 1, Group A Phase 2, and Group B Phase 2

    6 weeks

  • Barnett's Modified Papillary Bleeding Index - 6weeks

    Barnett's Modified Papillary Bleeding Index will be assessed at 6-weeks for all subjects in Group A Phase 1, Group B Phase 1, Group A Phase 2, and Group B Phase 2

    6 weeks

  • Gingival Trauma Index (as described by Carter-Hanson et al 1996)- 6weeks

    Gingival Trauma will be assessed at 6-weeks for all subjects in Group A Phase 1, Group B Phase 1, Group A Phase 2, and Group B Phase 2. The Gingival Trauma induced by improper flossing will be assessed by the technique described by Carter-Hanson et al 1996. All interdental areas of the facial and lingual surfaces of the gingiva will be examined for gingival lacerations and indentations, using a mouth mirror, light, and after gently air-drying the gingiva. A score of one (1) will be given to facial and lingual surface separately when floss trauma is identified as a demarcation line or laceration. A score of zero (0) will be recorded if no such trauma is present. The Gingival Trauma Index score per subject will be obtained by totalling all scores and dividing by number of sites examined.

    6 weeks

Secondary Outcomes (12)

  • Rustogi modification of Navy Plaque Index - baseline

    baseline

  • Lobene's Modified Gingival Index - baseline

    baseline

  • Barnett's Modified Papillary Bleeding Index - baseline

    baseline

  • Gingival Trauma Index (as described by Carter-Hanson et al 1996) - baseline

    baseline

  • Rustogi modification of Navy Plaque Index - 2 weeks

    2 weeks

  • +7 more secondary outcomes

Other Outcomes (1)

  • Patient satisfaction questionnaire

    14 weeks ( at end of study)

Study Arms (4)

Group A Phase 1

NO INTERVENTION

50% of sample are randomly assigned to Group A and are to utilise conventional flossing technique in the first phase of 6-weeks

Group B Phase 1

ACTIVE COMPARATOR

50% of sample are randomly assigned to Group B and are to utilise knotted floss technique in the phase 1 of 6-weeks

Other: Knotted floss technique

Group A Phase 2

ACTIVE COMPARATOR

After a washout period of 2 weeks, those from Group A will use the knotted floss technique for a period of 6 weeks.

Other: Knotted floss technique

Group B Phase 2

NO INTERVENTION

After a washout period of 2 weeks, those from Group B will use the conventional floss technique for a period of 6 weeks.

Interventions

The subjects use the knotted floss technique. In this modification of conventional flossing technique, a knot is tied in the floss at any distance in the middle third of the floss length. The floss is inserted past the interdental contact point by the conventional finger flossing technique in the non-knotted area and then during the 'to and fro movement' on the tooth surface cervical to contact point, the knotted area is engaged through the embrasure (Gomes et al 2016)

Group A Phase 2Group B Phase 1

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • have one type I gingival embrasure in the premolar first molar area.
  • full mouth Plaque Index score ≥1.8 (Silness and Loe 1964)
  • full mouth Gingival Index ≥ 1.0 (Loe and Silness 1963)
  • good general health,
  • have all teeth present in quadrant being tested and opposing quadrant
  • be available for a 14 week study period,
  • be ready to abide with the study criteria,
  • minimum education of grade 12

You may not qualify if:

  • have used in previous 2months oral hygiene aids other than tooth-brushing like dental flossing, mouthwashes and water jet irrigating systems
  • habit of unilateral mastication for ≥2 months,
  • medical history of diabetes mellitus, hepatitis, pregnancy or requiring any antibiotic prophylaxis,
  • having drug history in preceding two months of use of antibiotics, hormonal supplements, steroids, non steroidal anti-inflammatory medications, oral contraceptives or any drug that influence gingival tissue,
  • taking part in any other clinical or drug trial including taking part in other study groups related to the evaluation of knotted floss technique,
  • having physical handicap limiting the ability for oral hygiene and effective use of dental floss,
  • had orthodontic treatment
  • having gross dental caries
  • having advanced periodontitis (more than one pocket ≥ 6mm),
  • had active periodontal treatment like scaling, root planing, curettage, periodontal surgery in the previous 8weeks,
  • had any adverse oral habit like smoking, tobacco chewing or habits of self gingival mutilation,
  • had history of trauma or surgery to the jaws.
  • teeth adjacent to the embrasure area selected are having proximal caries or gross occlusal caries, or having proximal restorations, crowns, onlays or inlays.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Knotted Floss Study; Uttaranchal Dental and Medical Reserach Institute

Dehradun, Uttarakhand, 248140, India

Location

Related Publications (19)

  • LOE H, THEILADE E, JENSEN SB. EXPERIMENTAL GINGIVITIS IN MAN. J Periodontol (1930). 1965 May-Jun;36:177-87. doi: 10.1902/jop.1965.36.3.177. No abstract available.

    PMID: 14296927BACKGROUND
  • Socransky SS. Relationship of bacteria to the etiology of periodontal disease. J Dent Res. 1970 Mar-Apr;49(2):203-22. doi: 10.1177/00220345700490020401. No abstract available.

    PMID: 4313844BACKGROUND
  • Lewis MW, Holder-Ballard C, Selders RJ Jr, Scarbecz M, Johnson HG, Turner EW. Comparison of the use of a toothpick holder to dental floss in improvement of gingival health in humans. J Periodontol. 2004 Apr;75(4):551-6. doi: 10.1902/jop.2004.75.4.551.

    PMID: 15152819BACKGROUND
  • Suomi JD. Prevention and control of periodontal disease. J Am Dent Assoc. 1971 Dec;83(6):1271-87. doi: 10.14219/jada.archive.1971.0471. No abstract available.

    PMID: 4940401BACKGROUND
  • Schmid MO, Balmelli OP, Saxer UP. Plaque-removing effect of a toothbrush, dental floss, and a toothpick. J Clin Periodontol. 1976 Aug;3(3):157-65. doi: 10.1111/j.1600-051x.1976.tb01863.x.

    PMID: 1067277BACKGROUND
  • Hansen F, Gjermo P. The plaque-removing effect of four toothbrushing methods. Scand J Dent Res. 1971;79(7):502-6. No abstract available.

    PMID: 5289846BACKGROUND
  • Kresch CH. Finger-manipulated and floss-holder flossing: a comparison of the habit formation. Gen Dent. 1976 Jul-Aug;24(4):35. No abstract available.

    PMID: 1065605BACKGROUND
  • Gjermo P, Flotra L. The effect of different methods of interdental cleaning. J Periodontal Res. 1970;5(3):230-6. doi: 10.1111/j.1600-0765.1970.tb00722.x. No abstract available.

    PMID: 4254187BACKGROUND
  • Schmid M. Plaque control. In: Carranza F, editor. Glickmn's clinical periodontology. 6th ed. Philadelphia: W.B Saunders Company; 1984. p. 689-690

    BACKGROUND
  • Gomes A, Meru S, Rekhi A. Knotted floss technique. J Adv Res Dent Oral Health 2016;1(1):6-7

    BACKGROUND
  • SILNESS J, LOE H. PERIODONTAL DISEASE IN PREGNANCY. II. CORRELATION BETWEEN ORAL HYGIENE AND PERIODONTAL CONDTION. Acta Odontol Scand. 1964 Feb;22:121-35. doi: 10.3109/00016356408993968. No abstract available.

    PMID: 14158464BACKGROUND
  • LOE H, SILNESS J. PERIODONTAL DISEASE IN PREGNANCY. I. PREVALENCE AND SEVERITY. Acta Odontol Scand. 1963 Dec;21:533-51. doi: 10.3109/00016356309011240. No abstract available.

    PMID: 14121956BACKGROUND
  • Rustogi KN, Curtis JP, Volpe AR, Kemp JH, McCool JJ, Korn LR. Refinement of the Modified Navy Plaque Index to increase plaque scoring efficiency in gumline and interproximal tooth areas. J Clin Dent. 1992;3(Suppl C):C9-12.

    PMID: 1306676BACKGROUND
  • Lobene RR, Weatherford T, Ross NM, Lamm RA, Menaker L. A modified gingival index for use in clinical trials. Clin Prev Dent. 1986 Jan-Feb;8(1):3-6. No abstract available.

    PMID: 3485495BACKGROUND
  • Barnett M, Ciancio S. and Mather M. The modified papillary bleeding index: comparison with gingival index during the resolution of gingivitis. J Prev Dent 1980; 6:135-138

    BACKGROUND
  • Bergenholtz A, Brithon J. Plaque removal by dental floss or toothpicks. An intra-individual comparative study. J Clin Periodontol. 1980 Dec;7(6):516-24. doi: 10.1111/j.1600-051x.1980.tb02158.x.

  • Carter-Hanson C, Gadbury-Amyot C, Killoy W. Comparison of the plaque removal efficacy of a new flossing aid (Quik Floss) to finger flossing. J Clin Periodontol. 1996 Sep;23(9):873-8. doi: 10.1111/j.1600-051x.1996.tb00626.x.

  • Asadoorian J. Canadian dental hygienists association position statement on flossing. Can Jour Dent Hygienist. 2006;40(3):1-10

    RESULT
  • Carr MP, Rice GL, Horton JE. Evaluation of floss types for interproximal plaque removal. Am J Dent. 2000 Aug;13(4):212-4.

Study Officials

  • Aaron F Gomes, MDS

    Uttaranchal Dental and Medical Research Institute

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof & Head, Dept of Periodontics & Oral Implantology

Study Record Dates

First Submitted

October 6, 2016

First Posted

October 13, 2016

Study Start

April 1, 2015

Primary Completion

June 1, 2016

Study Completion

August 1, 2016

Last Updated

October 13, 2016

Record last verified: 2016-10

Locations